5. A pulley is a solid disk with mass M = 0.2 kg and radius R = 0.16 m. A string iswound around the pulley, and pulled with a constant

force F = 32 N. What is theangular acceleration a of the pulley? (a) 1000 rad/s? (b) 1500 rad/s² (c) 2000 rad/s² (d) 2500 rad/s²